export declare function withNew<GObject extends object, GArgs extends any[] = []>(obj: TWithNew<GObject, GArgs>, ...args: GArgs): GObject;
export declare function withNewAsync<GObject extends object, GArgs extends any[] = []>(obj: TWithNewAsync<GObject, GArgs>, ...args: GArgs): Promise<GObject>;
export type TWithNew<GObject extends object, GArgs extends any[] = []> = GObject & {
    _new: GArgs['length'] extends 0 ? () => void : (...args: GArgs) => void;
};
export type TWithNewAsync<GObject extends object, GArgs extends any[] = []> = GObject & {
    _new: GArgs['length'] extends 0 ? () => Promise<void> : (...args: GArgs) => Promise<void>;
};